Record DNS

I installed ISPconfig on suse 10 (64 bit) with perfect setup.
The server is online with public IP.
I see my webpage but if I try ping ns1.mydomain.xxx I get "unknown host"
I have 1 IP for the machine, 1 IP for NS1 and 1 IP for NS2. They are all public IP.
I added these IP in network card and also in ISPconfig under Management -> Server -> Settings -> tab Server IP list
In tab DNS -> Default NS1 I added my IP for ns1 (and for ns2)
Under DNS Manager I created the RECORD A (hostname ns1.wadnet.org - IP address my public IP for DNS)
I created the record A for ns1 and ns2 but I cannot ping ns1 neither ns2
where is my error?
I need to ping ns1.mydomain.xxx and ns2.mydomain.xxx because I need to host several domain on this server, I try to register 1 domain but I failed because of this error of ns1 and ns2
Thanks

Can you post the real domain name here?
I guess your ISPConfig server is not authoritative for the domain, therefore you must create the DNS records for the domain on another DNS server.

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the domain is www.wadnet.org
where I muste create the DNS record?
I have an other server with plesk as control panel and I always created the dns record in the same server not in an other. I haven't a dns server ...

Ok, the authoritative name servers for wadnet.org are ns2.wadnet.org and wadnet.org so you must create the DNS records there. I guess one of these is running ISPconfig?

Don't enter an IP address there! You must use an FQDN there.

Click to expand...

Corrected!

Now i ping ns1.wadnet.org and ns2.wadnet.org but I still am not able to register the domain.it. I get this error:
"Unable to verify the A record associated to the NS server NS1.WADNET.ORG" and I get the same error at dnsreport : "No NS A records at nameservers"

In DNS MANAGER for the domain wadnet.org I created A record hostname ns1.wadnet.org - IP my public IP for dns (also for ns2.wadnet.org)

So I think that the required a records must be create in server setting but I don't know where .....